What is the average life of a water heater?

Author: Derrick Pfannerstill  |  Last update: Friday, February 13, 2026

Average Lifespan Of A Hot Water Heater With regular inspection, draining, and flushing, you can expect a gas water heater to last anywhere from 8-12 years and an electric water heater to last anywhere from 10-15 years.

How do you know when a hot water heater needs to be replaced?

Common signs that it's time to replace your water heater include its age (usually 10-15 years), rusty or discolored water, strange noises, leaks or pooling water around the tank, and insufficient hot water supply.

Can a hot water heater last 20 years?

Water Heater Lifespan

With proper maintenance, a tank water heater tank should last six to 12 years. A tankless water heater can last for more than 20 years. Check your water heater's warranty for the most accurate timelines.

Should I replace my 15 year old water heater?

It's generally a good idea to replace a water heater before it fails if it's reaching the end of its expected lifespan (usually around 10-15 years). Replacing it proactively can prevent potential water damage and inconvenience when it does fail.

What shortens the life of a water heater?

Sediment can build up over time in a water heater, shortening its lifespan. To prevent this, you should flush your water heater at least once per year. Flushing will help to remove any sediment that has built up and improve the efficiency of your water heater.

How long should my water heater last? - Master Plumber Explains!

Why do water heaters fail so quickly?

Heating elements can gradual breakdown if there is a mineral build up in the heating system. This is because mineral deposits can solidify, encasing the elements and forcing it to work harder to heat the water. This will lead to gradual wear out that will make the heating system have a shorter life span.

What brand water heaters last the longest?

Bradford White water heaters are known for their durability and sturdy construction, providing lasting performance for years. In business since 1881, the company has a long reputation for selling quality products for both residential and commercial use.

How often should a water heater be flushed?

Most homeowners should flush their water heaters every 6 months or so, but if you have extremely hard water, you may want to do it more often. Flushing your hot water heater could be necessary as often as every few months depending on the mineral content of your local water supply.

How to tell if a water heater is going bad?

Water heaters show several signs of going bad, including lack of hot water, temperature fluctuations, decreased water pressure, strange noises, rotten egg smell, visible leaks, rusty or discolored water, and increased energy bills. If your water heater is over 10 years old, it may be time to consider a replacement.

What is the most reliable brand of hot water heater?

The Lifestory Research 2024 America's Most Trusted® Water Heater ranking is based on 6,547 opinions of people surveyed in the United States over the last 12 months. The most trusted water heater brands in order were Bosch, Whirlpool, Rheem, GE, Kenmore, AO Smith, Ruud, Bradford White, and Rinnai.

Should I replace my water heater before it fails?

A Corroded Water Heater Could Cause Significant Damage

If the tank rusts through, it could fail catastrophically and flood your home. You can avoid this disaster by replacing your water heater before it fails.

What is the life expectancy of a Rheem water heater?

Rheem hot water systems have a typical life span of between 5 and 15 years depending on water conditions and how well the system has been serviced. You can add years to the life to a Rheem hot water system if you have it serviced every 5 years.

How long does it take for a plumber to replace a hot water heater?

Once you decide to (or are forced to) replace your current water heater, there are a few decisions you need to make to get the process started. If there are no issues or complications, a licensed plumber should be able to complete the process in 2-3 hours.

Are tankless water heaters worth it?

Advantages and Disadvantages of Tankless Water Heaters

The initial cost of a tankless water heater is greater than that of a conventional storage water heater, but tankless water heaters will typically last longer and have lower operating and energy costs, which could offset their higher purchase price.

What maintenance does a water heater need?

Care for your unit by checking these common issues annually: Check for leaks. Flush the tank. Test the temperature and pressure relief valve.

How much does a plumber charge to flush a water heater?

The national average cost to flush a water heater is $160, but prices can vary in increments based on the tank size. A 30-gallon tank will cost between $90 and $120 on average, while a 70-gallon tank could cost anywhere between $180 and $250.

What happens if you never flush your water heater?

-Reduced Efficiency: As scaling collects at the bottom of the tank, your water heater will become less effective at heating the water in the tank. -Corrosion: If your water heater goes long enough without a proper flush, you could also have corrosion attacking the tank itself, weakening its structural integrity.

How often should I replace the anode rod in my water heater?

When to Replace Your Anode Rod
  1. Timeframe. Anode rods require routine inspection and replacement, approximately every three to five years. ...
  2. Visual inspection. Check your water heater and water anode rod for corrosion and rust at least once per year. ...
  3. Tank age and condition. ...
  4. Performance problems. ...
  5. Manufacturer recommendations.

What water heaters do plumbers recommend?

AO Smith, State, and Bradford White are all very dependable brands and are known by professional plumbers for top-quality gas and electric water heaters. Master plumber Eddie Heil put it this way, “AO Smith, State, and Bradford White are all great choices in our experience.

Can a hot water heater last 30 years?

On average, water heaters can last 8 to 12 years with proper installation and regular preventive maintenance.

Is State a good water heater?

Electric water heaters from State are known to last up to 20 years, while their gas counterparts typically have a lifespan of around 12 years or more. This longevity is due to State's use of quality materials and innovative designs, such as durable anode rods that protect the tank from corrosion.

How much is labor to replace a water heater?

What is the average labor cost to replace an electric hot water heater? The cost of labor might range from $150 to $1,000 or more, however, depending on the type and size of the water heater. The cost of replacing a 50-gallon hot water heater will vary depending on the type of heater you choose.

Does home insurance cover a water heater?

It's important to note that standard homeowners insurance policies typically only cover damage to the structure of your home and personal property. They do not include replacement cost coverage for the heater itself.

How much is the average electric bill for water heater?

Typically, a hot water heater that uses a tank will run for 3 to 5 hours per day. So, a 4,000-watt heater used for 3 hours a day at 10¢ per kWh will cost $1.20 per day, about $36.50 per month, or $438 per year.

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